Dermatology Impetigo Lesions Quiz
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Questions and Answers

What distinguishes Staphylococcus aureus from other staphylococci primarily?

  • Resistance to hydrogen peroxide
  • Production of coagulase (correct)
  • Ability to produce catalase
  • Ability to cause impetigo

    • Which bacterium can cause impetigo according to the text?

  • Staphylococcus saprophyticus
  • Streptococcus pneumoniae
  • Staphylococcus epidermidis
  • Streptococcus pyogenes (correct)

    • Why can bacteria that make catalase survive the killing effect of hydrogen peroxide within neutrophils?

  • They are resistant to all types of oxygen radicals
  • They have a mechanism to detoxify hydrogen peroxide (correct)
  • They can form biofilms within neutrophils
  • They produce an enzyme that neutralizes hydrogen peroxide

    • Which staphylococcal species is the most common and causes the most serious infections in humans?

    <p>Staphylococcus aureus</p> Signup and view all the answers

    What enzyme distinguishes Staphylococcus aureus from other staphylococci?

    <p>Coagulase</p> Signup and view all the answers

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